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All results from a given calculation for H2CNCN (cyanamide, methylene)

using model chemistry: B2PLYP/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes 1A'
Energy calculated at B2PLYP/6-31+G**
 hartrees
Energy at 0K-186.693119
Energy at 298.15K 
HF Energy-186.494748
Nuclear repulsion energy91.811334
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at B2PLYP/6-31+G**
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3260 3105 4.38 88.52 0.60 0.75
2 A' 3130 2981 14.95 95.58 0.14 0.25
3 A' 2244 2137 26.73 203.78 0.26 0.41
4 A' 1694 1613 23.08 47.36 0.17 0.30
5 A' 1520 1447 13.61 31.11 0.38 0.55
6 A' 1239 1180 8.24 4.31 0.73 0.84
7 A' 952 906 6.47 1.61 0.07 0.13
8 A' 614 585 2.31 3.26 0.25 0.41
9 A' 247 235 6.22 10.04 0.56 0.71
10 A" 1099 1046 21.90 0.55 0.75 0.86
11 A" 772 735 0.67 5.56 0.75 0.86
12 A" 353 336 7.88 0.72 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8561.2 cm-1
Scaled (by 0.9524) Zero Point Vibrational Energy (zpe) 8153.7 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at B2PLYP/6-31+G**
ABC
2.17807 0.17852 0.16500

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.100 -1.559 0.000
N2 -0.617 -0.493 0.000
C3 0.000 0.707 0.000
N4 0.420 1.804 0.000
H5 -0.417 -2.513 0.000
H6 1.190 -1.555 0.000

Atom - Atom Distances (Å)
  C1 N2 C3 N4 H5 H6
C11.28412.26863.37841.08461.0902
N21.28411.34982.52072.02912.0956
C32.26861.34981.17463.24682.5564
N43.37842.52071.17464.39723.4464
H51.08462.02913.24684.39721.8705
H61.09022.09562.55643.44641.8705

picture of cyanamide, methylene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N2 C3 118.903 N2 C1 H5 117.632
N2 C1 H6 123.712 N2 C3 N4 173.786
H5 C1 H6 118.656
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.048      
2 N -0.245      
3 C 0.367      
4 N -0.398      
5 H 0.165      
6 H 0.158      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.607 -4.499 0.000 4.539
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -24.402 -2.864 0.000
y -2.864 -24.212 -0.000
z 0.000 -0.000 -23.202
Traceless
 xyz
x -0.694 -2.864 0.000
y -2.864 -0.410 -0.000
z 0.000 -0.000 1.105
Polar
3z2-r22.209
x2-y2-0.190
xy-2.864
xz0.000
yz-0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.155 0.413 -0.000
y 0.413 8.708 -0.001
z -0.000 -0.001 2.943


<r2> (average value of r2) Å2
<r2> 71.306
(<r2>)1/2 8.444